Add option for RGMII connection type between the MAC and the PHY
device into the ethernet controller binding.
Fixes: #66348
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Add a property to the ethernet controller binding
indicating what type of connection the MAC has with
the PHY device.
Signed-off-by: Declan Snyder <declan.snyder@nxp.com>